Water-heater.



No. 703,738. Patented July I,v |902.

H. W. DWD.

WATER HEATER.

(Application led Oct. 26, 1901.)

(llo Model.)

Ullllllhy" s i m11 wibmeow Snom/wo@ y l 2. u @513, @film i g UNITED STAT-ns PATENT OFFICE.

HENRY VVA'IKINS ODOWD, OF NEV YORK, N. Y.

WATER-HEATER SPECIFICATION forming part of-Iletters Patent No. 703,738', dated July 1, 1902.

l Application filed October 26,1901. Serial No. 80,138. (No model.)

T all whom, it ntrty concern;

Be it known that I, HENRY WATKINS ODOWD, a citizen of the United States, and a resident of New York city, in the county of Westchester and State of New York, have iuvented a certain new and useful' Vater Ifleater, of which the following is aspecifica` parts tofacilitate their external cleaning;v

These objects are'accomplished by the means herein set forth.

In the drawings accompanying'this speci'- fication, in which like numerals refer to similar parts throughout the severalv views, Fig-4 ure I shows the heater in elevation and 'in partial section. Fig. II is a-plan of the watersections and their inclosing jackets through line a, Fig. I. Fig. III represents a section of the heater having its top cut away or as taken through line b, Fig. l. Fig. IV shows a cross-section of one of the heating-sections cut through its center, as at line c, Fig. I. Fig. V is a cross-sectional view showing how the heater-sections are united. Fig. VI is a sectional view of one of the heater-sections, showing the course vofthe water in passing through it. Fig. VII is a sectional view ofV the heater, showing how the jacketingmay be lifted from the water-sections for the pur.- poses of cleaning. Fig. VIII is a plan of the burner-plate that sustains the burners and the jacketing.

The water-receptacles of my heater are composed of preferably cast-metal sectionssuch as iron, steel, brass, copper,aluminiumand I have found three sections sufficient for ordinary'use. These sections are made somef what larger in diameter than Ain length, and

the sides are made in the form of corrugations, as in Figs. II, III, IV, and I have adopted an odd number, as five. The tops and bottoms of the sections are plain surfaces, except as to the elevation of the hubs in the means \of pipe-nipples.

-and tops of each section.

l gated surfaces.

centers, as shown in Figs. Il `and V. The tops and bottoms are pierced and provided with connecting-tubes, as 18, and in number they correspond with the corrugations of the sides. These tubes are preferably cast integral with the rest4 of the section. These tubes constitute passages for the-heat.

In each section f1, midway between the top and bottom, abaffle-plate 2l', Figs. III, IV, VI, is cast so as to connect with and is also integral with the tubes. A top view of this plate is shown in Fig. III;4 It is shown in elevation in Fig. VI and in cross-section in Fig. IV. Each section is provided with central hubs l5 l5', the hub-15* on one section being threaded to enter a screw-thread cut within the hub l5 on anotherl section, as shown in Fig. V; but these sections may be united by A hole 19 through the smaller hub allows "of the passage of the water from onesection to another. In Fig. VI thearrows show the courses the water must take in passing through a section. The small passage-way 19,' preferably of the same farea Vas the water-supply pipe, concentrates the water at the centers ofthe sections, and

vthe baffle-plate 21 causes it to spread out around and against the heated tubes and sides of the sections.

In mounting these sections they are preferably alternated as to the sidec'orrugations and the tubes, as shown in Figs. I and II, so that as the heat risesthrough a tube it impinges against the bottom ofa'section and is deiiected from its course to ndthe next tube, thus making contact with both the bottoms So as to the corrugations. The broken or uneven side surfaces divert the rapid vertical ascentjof the heat between the sections and their jacketing, causing it to touch all over the corru- The water-pipe 14E is screwed into the top and bottom sections, as indicated in Fig. I, the inlet being preferably the bottom pipe.

Below the bottom section at a suitable distance a plate 12, having Va hub 13, is secured on the water-pipe -14by` clampingor by means of a set-screw, as at 16, Fig. I. Asection of this plate is shown in Fig. VII and a plan in Fig. VIII.

The jacketing for the heater-sections, as shown in Figs. I and VII, consists of a base 5, provided with a rim 10 and a iiange 9. Over the rim 10 a sheet-metal jacket 1 is secured, and upon the iiange 9 a sheet-iron jacket 2. Inside of the jacket 2 is a lining of asbestos or other non-conductor of heat Upon the tops of these sheet-metal jackets a top 6 is secured by means of flanges 8 and '7. The Water-pipe 14 passes freely through an outlet in the apex of the top 6. The top is also provided with a pipe-collar 11, to which a pipe may be attached for carrying away the products of combustion.

The top, the jackets, and the base are all securely bound together and constitute the jacketing of the heater, and the base is adapted to rest upon theburner-plate 12, as shown in Fig. I. The entire jacketing may be lifted from the burner-plate, as indicated in Fig. VII, and may be elevated above the watersections, the top water-pipe 14 being madelong enough to admit of this being done. Thus access to the sections is made convenient, which is a valuable feature of this invention, as in order to maintain the eciency of such heaters it is important that they be cleaned occasionally.

The gas-burner is shown at 16 in Figs. I, VII, and VIII. AThe conditions do not require a particular form of burner. An annular burner is here shown consisting of two hollow concentric rings encircling the waterpipe 14. They are shown partly in section in Fig. I. The inner ring is connected with the outer one by the tunnel 16, and gas is admitted to both through the supply-tube 16'. The rings are otherwise connected by the webs 22, which afford means for attaching the entire burner to the base 12. The

base 5 is notched out, as at 20, to admit of its dropping over the supply-tube 16, as shown The burner-base is perin Figs. I and VII.

forated, as at 17, for supplying air for combustion.

It will be seen by reference t-o Fig. I that the water-sections are wholly enveloped in the heat rising from the burner and that the alternating ofthe tubes and the corrugated sides of the sections exposes all the surfaces to a uniform exposure to the action of the heat.

I'Iaving described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. A water-heater section having corrugated sides as shown, tubes uniting the top and bottom corresponding in number with the corrugations and located concentrically therewith, a deiiecting-plate midway between the bottom and top surfaces and united with the tubes in the manner shown, and a central waterway in the top and bottom with means for connecting one section with another, substantially as herein shown and described.

2. The combination in a water-heater of cast sections, central threaded parts for connecting the sections said parts bein gprovided with Water-passages, the sections having corrugated sides and tubes corresponding in number to the corrugations and placed concentrically therewith, a deflecting-plate centrally of the sections and uniting with the tubes, and the sections mounted to alternate the tubes and corrugations so that the tubes and corrugations of one section Will have a staggered relation to those of the adjacent sections, substantially as herein set forth.

Signed at 447 West Fourteenth street, inthe county of New York and State of New York, this 16th day of October, A. D. 1901.

HENRY WATKINS ODOWD.

Witnesses:

JAMES M. GENTLE, W. J. DOUGIIERTY. 

